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dc.contributor.authorSverdrup, Knuten
dc.contributor.authorNikiforakis, Nikolaosen
dc.contributor.authorAlmgren, Aen
dc.date.accessioned2019-01-11T00:32:36Z
dc.date.available2019-01-11T00:32:36Z
dc.date.issued2020-01-01en
dc.identifier.isbn9788494731167en
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/287862
dc.description.abstractWe present a numerical methodology for three-dimensional large-scale simulations of two-fluid flow for generalised Newtonian fluids exhibiting non-Newtonian behaviour such as a non-zero yield stress and power-law dependency on strain-rate. The incompressible continuity and Cauchy momentum equations, along with appropriate rheological models, are solved using a computational framework initially developed at Lawrence Berkeley National Laboratory. The solver uses second-order Godunov method- ology for the advective terms and semi-implicit diffusion in the context of an approximate projection method to evolve the system in time. We have extended the algorithm to en- able the simulation of Herschel-Bulkley fluids by means of a mathematical regularisation of the constitutive equation which describes the fluid rheology. Additionally, interfaces between fluids with different properties are treated using a passively advected indicator function. The performance of the software is validated for two-dimensional displacement flow and tested on a three-dimensional viscoplastic dambreak.
dc.description.sponsorshipFunding and technical support from BP through the BP International Centre for Advanced Materials (BP-ICAM) which made this research possible.
dc.titleNumerical simulations of immiscible generalised Newtonian fluidsen
dc.typeConference Object
prism.endingPage2980
prism.publicationDate2020en
prism.publicationNameProceedings of the 6th European Conference on Computational Mechanics: Solids, Structures and Coupled Problems, ECCM 2018 and 7th European Conference on Computational Fluid Dynamics, ECFD 2018en
prism.startingPage2969
dc.identifier.doi10.17863/CAM.35177
dcterms.dateAccepted2018-02-23en
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2020-01-01en
dc.contributor.orcidSverdrup, Knut [0000-0003-3000-1074]
dc.contributor.orcidNikiforakis, Nikolaos [0000-0002-6694-2362]
rioxxterms.typeConference Paper/Proceeding/Abstracten
pubs.funder-project-idEPSRC (1645917)
cam.orpheus.successThu Nov 05 11:53:18 GMT 2020 - Embargo updated*
rioxxterms.freetoread.startdate2021-01-01


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